Translations:Reactivating the Backlight/2/zh-cn
From Manjaro
某些用户 - particularly those using laptops - are encountering a problem where the screen brightness is too dim upon replacing Microsoft Windows with a Linux distribution as their main operating system. This is because some unscrupulous hardware manufacturers have coded the BIOS to automatically disable the screen backlight if Windows is not detected running on the system. Fortunately, it is possible to fix this problem by entering a single command in the terminal.